Mis Links favoritos
Página de El Válvulas
Tube museum
Portal fuenterebollo
Daves homemade tube radios
Vintage radio repair and restoration
Schematics
Diales radios
Esquemas
Esquemas Grundig
Frank electron tube datasheet
Links de radio
La radio de sophie
Electron tube datasheets
Loewe multivalves
Philips
Magic eye tubes
Engels
Carnets tsf
Hora 13
Vintage radio
Historia de la comunicacion
Telecommunications Timeline (thanks Peyton)
Amateur radio and emergency communications (thanks Sky)
New York's Broadcasting History (thanks Ava, Jack and Tracy)
Electrical circuits explained (Thanks Corrine)
The telegraph and Morse code text (Thanks Corrine & Erin)